115621285 has 16 divisors (see below), whose sum is σ = 149708160. Its totient is φ = 85216320.

The previous prime is 115621283. The next prime is 115621313. The reversal of 115621285 is 582126511.

It is not a de Polignac number, because 115621285 - 2¹ = 115621283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115621283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39606 + ... + 42424.

It is an arithmetic number, because the mean of its divisors is an integer number (9356760).

Almost surely, 2^115621285 is an apocalyptic number.

It is an amenable number.

115621285 is a deficient number, since it is larger than the sum of its proper divisors (34086875).

115621285 is a wasteful number, since it uses less digits than its factorization.

115621285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468.

The product of its digits is 4800, while the sum is 31.

The square root of 115621285 is about 10752.7338384245. The cubic root of 115621285 is about 487.1685724504.

Adding to 115621285 its reverse (582126511), we get a palindrome (697747796).

The spelling of 115621285 in words is "one hundred fifteen million, six hundred twenty-one thousand, two hundred eighty-five".